{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:LIDLXSOVT4FABRZH4W7UI7JZKR","short_pith_number":"pith:LIDLXSOV","canonical_record":{"source":{"id":"1704.08307","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.TO","submitted_at":"2017-04-03T15:42:22Z","cross_cats_sorted":[],"title_canon_sha256":"6c580e072b7859d99023c8bad27634ae6bb8a53a9ed7780db7b6f2c278f39c89","abstract_canon_sha256":"007517d1aecdb3868917c7d86f4ec51e27b5bfcbd61d3e249ff9b06f72632b1c"},"schema_version":"1.0"},"canonical_sha256":"5a06bbc9d59f0a00c727e5bf447d39547b0536cb3df244f671fd62c443fa9b70","source":{"kind":"arxiv","id":"1704.08307","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.08307","created_at":"2026-05-18T00:45:28Z"},{"alias_kind":"arxiv_version","alias_value":"1704.08307v1","created_at":"2026-05-18T00:45:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.08307","created_at":"2026-05-18T00:45:28Z"},{"alias_kind":"pith_short_12","alias_value":"LIDLXSOVT4FA","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_16","alias_value":"LIDLXSOVT4FABRZH","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_8","alias_value":"LIDLXSOV","created_at":"2026-05-18T12:31:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:LIDLXSOVT4FABRZH4W7UI7JZKR","target":"record","payload":{"canonical_record":{"source":{"id":"1704.08307","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.TO","submitted_at":"2017-04-03T15:42:22Z","cross_cats_sorted":[],"title_canon_sha256":"6c580e072b7859d99023c8bad27634ae6bb8a53a9ed7780db7b6f2c278f39c89","abstract_canon_sha256":"007517d1aecdb3868917c7d86f4ec51e27b5bfcbd61d3e249ff9b06f72632b1c"},"schema_version":"1.0"},"canonical_sha256":"5a06bbc9d59f0a00c727e5bf447d39547b0536cb3df244f671fd62c443fa9b70","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:45:28.027528Z","signature_b64":"xc0q7ZPXFqiTr/I/FE96LihqEYqO95fQZvEp9AekxhYPCnHWGb3Jqz7Fv/LPPdsjNksqUplP6aCW6Oagp95FCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5a06bbc9d59f0a00c727e5bf447d39547b0536cb3df244f671fd62c443fa9b70","last_reissued_at":"2026-05-18T00:45:28.027114Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:45:28.027114Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.08307","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:45:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D9i3KJLo1SiYGecjyw1OniBfFAGQSlAD2VeLJ5mjIZ+WOw0oczzDpBdvgTbSdcj2z8T3J6NHxD9fuox89leBAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T20:29:19.127060Z"},"content_sha256":"18ddbad9fc9f341b4e8a73e73572b786d56aa03daebe2addf0bae3a8425b9996","schema_version":"1.0","event_id":"sha256:18ddbad9fc9f341b4e8a73e73572b786d56aa03daebe2addf0bae3a8425b9996"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:LIDLXSOVT4FABRZH4W7UI7JZKR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Simulating Wear On Total Knee Replacements","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"q-bio.TO","authors_text":"Ansgar Burchardt, Christian Abicht, Oliver Sander","submitted_at":"2017-04-03T15:42:22Z","abstract_excerpt":"Wear on total knee replacements (TKRs) is an important criterion for their performance characteristics. Numerical simulations of such wear has seen increasing attention over the last years. They have the potential to be much faster and less expensive than the in vitro tests in use today. While it is unlikely that in silico tests will replace actual physical tests in the foreseeable future, a judicious combination of both approaches can help making both implant design and pre-clinical testing quicker and more cost-effective.\n  The challenge today for the design of simulation methods is to obtai"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.08307","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:45:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sxi1TY8LPWX2qCHINByBvnfaw6AiJFScR7MXK3zUlXpK17XMm3SmKt+Nbpcxrdwsq+RPvDtwTB3GKo5SIKP3AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T20:29:19.127432Z"},"content_sha256":"737378afb67934134108a3a91dbe3d8bb45aa3d0b1f0bc0d595f08b92df9328e","schema_version":"1.0","event_id":"sha256:737378afb67934134108a3a91dbe3d8bb45aa3d0b1f0bc0d595f08b92df9328e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LIDLXSOVT4FABRZH4W7UI7JZKR/bundle.json","state_url":"https://pith.science/pith/LIDLXSOVT4FABRZH4W7UI7JZKR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LIDLXSOVT4FABRZH4W7UI7JZKR/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-30T20:29:19Z","links":{"resolver":"https://pith.science/pith/LIDLXSOVT4FABRZH4W7UI7JZKR","bundle":"https://pith.science/pith/LIDLXSOVT4FABRZH4W7UI7JZKR/bundle.json","state":"https://pith.science/pith/LIDLXSOVT4FABRZH4W7UI7JZKR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LIDLXSOVT4FABRZH4W7UI7JZKR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:LIDLXSOVT4FABRZH4W7UI7JZKR","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"007517d1aecdb3868917c7d86f4ec51e27b5bfcbd61d3e249ff9b06f72632b1c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.TO","submitted_at":"2017-04-03T15:42:22Z","title_canon_sha256":"6c580e072b7859d99023c8bad27634ae6bb8a53a9ed7780db7b6f2c278f39c89"},"schema_version":"1.0","source":{"id":"1704.08307","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.08307","created_at":"2026-05-18T00:45:28Z"},{"alias_kind":"arxiv_version","alias_value":"1704.08307v1","created_at":"2026-05-18T00:45:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.08307","created_at":"2026-05-18T00:45:28Z"},{"alias_kind":"pith_short_12","alias_value":"LIDLXSOVT4FA","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_16","alias_value":"LIDLXSOVT4FABRZH","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_8","alias_value":"LIDLXSOV","created_at":"2026-05-18T12:31:28Z"}],"graph_snapshots":[{"event_id":"sha256:737378afb67934134108a3a91dbe3d8bb45aa3d0b1f0bc0d595f08b92df9328e","target":"graph","created_at":"2026-05-18T00:45:28Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Wear on total knee replacements (TKRs) is an important criterion for their performance characteristics. Numerical simulations of such wear has seen increasing attention over the last years. They have the potential to be much faster and less expensive than the in vitro tests in use today. While it is unlikely that in silico tests will replace actual physical tests in the foreseeable future, a judicious combination of both approaches can help making both implant design and pre-clinical testing quicker and more cost-effective.\n  The challenge today for the design of simulation methods is to obtai","authors_text":"Ansgar Burchardt, Christian Abicht, Oliver Sander","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.TO","submitted_at":"2017-04-03T15:42:22Z","title":"Simulating Wear On Total Knee Replacements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.08307","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:18ddbad9fc9f341b4e8a73e73572b786d56aa03daebe2addf0bae3a8425b9996","target":"record","created_at":"2026-05-18T00:45:28Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"007517d1aecdb3868917c7d86f4ec51e27b5bfcbd61d3e249ff9b06f72632b1c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.TO","submitted_at":"2017-04-03T15:42:22Z","title_canon_sha256":"6c580e072b7859d99023c8bad27634ae6bb8a53a9ed7780db7b6f2c278f39c89"},"schema_version":"1.0","source":{"id":"1704.08307","kind":"arxiv","version":1}},"canonical_sha256":"5a06bbc9d59f0a00c727e5bf447d39547b0536cb3df244f671fd62c443fa9b70","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5a06bbc9d59f0a00c727e5bf447d39547b0536cb3df244f671fd62c443fa9b70","first_computed_at":"2026-05-18T00:45:28.027114Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:45:28.027114Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xc0q7ZPXFqiTr/I/FE96LihqEYqO95fQZvEp9AekxhYPCnHWGb3Jqz7Fv/LPPdsjNksqUplP6aCW6Oagp95FCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:45:28.027528Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.08307","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:18ddbad9fc9f341b4e8a73e73572b786d56aa03daebe2addf0bae3a8425b9996","sha256:737378afb67934134108a3a91dbe3d8bb45aa3d0b1f0bc0d595f08b92df9328e"],"state_sha256":"57ccf77c7142392ee41dbcf91ede2d3b6c9cd135b54d2c07022103ebe1aa32a1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xXN00MJIY9L/lRZORb0tHunRcmjUyo27baemUiKNoBucd60lAdHGK+wlTNbNLRVoko33Y5n8YxpmDr+OGwj/Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T20:29:19.129299Z","bundle_sha256":"a7c9f94642e1acfbce88911a692d4c80821185c3df8aa551fe1781ae3b5b297f"}}